Side-cutting type turnout screen scarifier

The utility model relates to a turnout screen scarifier, in particular to a side-cutting type turnout screen scarifier. The side-cutting type turnout screen scarifier comprises a working cab (2), a running cab (21) and a vehicle frame (15). An excavating mechanism, a railway ballast backfill device and a power transmission system are installed on the vehicle frame (15), wherein the excavating mechanism comprises a bucket wheel (5), a transverse conveyer belt (6) and an undercut cutting board (9), the railway ballast backfill device comprises a screening device (11), a backfill bucket (12) and a backfill belt (10), and the power transmission system comprises an engine room (17) and a hydraulic oil cylinder (13). A ballast stacking device (14) is arranged below the screening device (11) and used for allowing backfilled railway ballast to be arranged on a railway, therefore, steel rails are cleaned, the ballast is better arranged on a road bed, and subsequent working vehicles such as a ballast distributing and shaping vehicle and a crunching vehicle can conveniently and easily work. In addition, the two sides of the bucket wheel (5) in the rotation direction are respectively provided with a protective cover (51), and therefore the ballast in the bucket wheel (5) can not be splashed out to hurt surrounding workers.